c# - "Current thread must be set to single thread apartment (STA)"将字符串复制到剪贴板时出错

Question

我试过来自 How to copy data to clipboard in C# 的代码:

Clipboard.SetText("Test!");

我得到这个错误:

Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it.

我该如何解决？

Answer 1

如果您无法控制线程是否以 STA 模式运行(即测试、插件到其他应用程序或只是一些随机发送该调用以在无 UI 线程上运行的代码，并且您不能使用 Control.Invoke 将其发送回主 UI 线程)比您可以在专门配置为处于剪贴板访问所需的 STA 状态的线程上运行剪贴板访问(内部使用 OLE这实际上需要 STA)。

Thread thread = new Thread(() => Clipboard.SetText("Test!"));
thread.SetApartmentState(ApartmentState.STA); //Set the thread to STA
thread.Start(); 
thread.Join(); //Wait for the thread to end